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T. GORDON zzz w. R. SWIFT.

REGENERATIVE BURNER.

vfzan ATTORNEY Patented Aug. 17,1897.

WITNESSES:

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. with said shells by brazing.

UNITED STATES PATENT OFFICE.

THOMAS GORDON, OF PHILADELPHIA, PENNSYLVANIA, AND VILLIAM R. SWIFT, OF NEY YORK, N. Y.

i REG EN ERATIVE BURNER.

SPECIFICATION forming part of Letters Patent No. 588,272, dated August 17, 189'?. Application filed December 22, v1.896. Serial No. 616,604. (No model.)

T0 all whom, it may concern: l

Be it known that we, THOMAS GORDON, of the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, and WIL- LIAM R. SWIFT, of the city, county, and State of New York, have invented a new and useful Improvement inRegenerative Burners, of which the following is a specification.

' We will describe a regenerative burner embodying our improvement and then point out the novel features in a claim.

The accompanying drawing illustrates invertical section a regenerative lamp and burner embodying the features of our invention. l'

Referring to the said drawing in detail, A designates a gas-conduit, here shown as in the form of a pipe, provided at its lower endv with a screw-coupling ce, capable of v engagement with a nipple of a gas-fixture. At the top of the gas-conduit A is a central gaschamber a', which is made in the form of a c apV or hollow plug, from which extend radially a number of tubes a2, serving to sup-A ply the gas to the gas-chamber B. The gaschamber is of annular form, it being in the present instance made of two sheet-metal shells b and b2. A The inner shell b'is engaged with the tubes a2. A convenient way of engaging the tubes a2 with the cap or plug a' is to provide the parts with screw-threads on their adjacent surfaces. The ends of the tubes which support the shell b' may be united The lower edge of the shell b is turned inwardly in the form of a ange b3. That portion ofthe shellV b formingv the upper portion of the gas-cham- -ber B is turned outwardly to form a shoul? made of sheet metal, and, as shown, has at its lower cylindrical portion c a contracted conical portion c2 and a smaller cylindrical portion c3. The upper extremity of the latter is turned inwardly to form a iiange c, and this may bear against the inwardly-turned lower edge of the shell b2, comprised in the gas-chamber.

lfVe have shown the lower cylindrical portion c of the shell O as provided with an integral outwardly-extending flan ge c5, forming a gallery or support for the combustion-chamber, which in the present example of our imv provement is made in the form of a glass globe D, provided with a cylindrical base p ortion d, that loosely surrounds the lower cy- C, and consequently the combustion-chamber, consists in arms a5, extending outwardly from the coupling a to a ring a, upon which the iiange or gallery c5 rests.

Preferably we employ in the lower part of the shell C a perforated or reticulated diaphragm E, so as to prevent air ascending in gusts.

Part of the air escapes from the perforations in the shell C, so as lto supply air to the lower mantle or surface of the dame. Another portion of the air flows upwardly past the tubes a2 to support the combustion on the upper mantle or surface of the flame. This portion of the air passes through the airchamber G and thence to a deflector H, whereby air is directed against the flame.-

The chamber G is formed partly by the cycap as is tted to such chamber on the outn side of the body ofthe central gas-chamber a/ and engaged there by means of screw-threads. It extends considerably above the body of the central gas-chamber and projects into the upper portion of the combustion-chamber- The extension of the conduit A is shown as being made of a separate tube screw-threaded into the conduit A and also into the body of the central gas-chamber. This extension rises almost to the top of the cap a3. By this arrangement of parts the gas rises through the central gas-chamber to the top of Ithe cap as, where it is heated by reason of the fact that the cap as is subjected to the heating action of the waste products of combustion in the chamber Dj and then descends through the annular space between the extension of the `gas-conduit Aand the side wall of the cap a8 until it escapes through the tubes a2.

What is claimed as new is- In a regenerative burner, the combination with a nipple for connecting with a gas-fixture, a gas-supply pipe extending upwardly therefrom to a point above the air-heating chamber, a shell surrounding said gas-supply pipe at its upper portion and forming therewith a return-cond uit whose upper part is directly exposed to the heat of the waste products` a vertically-extended gas-burner chamber provided with a circular row of gas-outlet openings at its base, so that the supply of gas will be above the Haine, a series of radial tubes communicating between the lower part of the return-conduit and the upper portion of the gas-burner chamber, a eentrally-arranged air-heatin g chamber located above the annular gas-burner chamber, and having openings for the escape of air, a defiector supported by the air-heating chamber and extending downwardly so as to surround the annular gas-burner chamber, a globe-Support below the burnerand concentric with and sustained by the gas-supply pipe, a globe supported by the globe-support, and a shell surrounding the gas-supply pipe and extending from the globe-support to the base portion of the annular burner-chamber inward of its row of gas-outlets, so as to form with the inner wall of the gas-burner chamber, part of a conduit to the air-heating chamber, said shell having perforations for supplying air to the base of the burner, and also to the lower portion ofthe globe,substantially as specified.

THOMAS GORDON. VILLIAM R. SWIFT.

Vitnesses as to signature of Thos. Gordon:

F. S. KNowLEs, JAMES T. LANG. 'itnesses to signature of William R. Swift:

ERNEST HoPKrNsoN, S. ROBERTS. 

